NDA || WORK, POWER, ENERGY || QUIZ

A force =(5i + 3j +2k)N is applied over a particle which displaces it from its origin to the point m. the work done on the particle in joules is

A bob of a simple pendulum has a velocity of 1.4 m/s at its mean position. Find the maximum vertical height it can attain.

(g = 9.8 m/s²)

Which of the following is not a unit of power?

A stone is released from a tower, its total energy during its fall:

If the power of a signal is a finite value and its energy is zero, then it is a _________.

How much mass is converted into energy per day in Tarapur nuclear power plant operated at  KW?

A force  N is applied over a particle which displaces it from its origin to the point m then the work done on the particle is :

A nuclear power plant is operated at 1 GW. How much mass is converted into energy in 1 hour? (ignore the loss of energy due to heat or friction)

Fill in the blank-

If only _________ forces are acting on a body, then its mechanical energy is conserved.

Consider the following two statements

1) Linear momentum of a system of particles is zero.

2) Kinetic energy of the system of the particle is zero.